soil temperature and USDA maps

Discussion in 'Plants: Science and Cultivation' started by alex66, Feb 12, 2014.

  1. alex66

    alex66 Rising Contributor Maple Society 10 Years

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    hi i have one question ,is the temperature of the soil important for correct cultivation of plant? if yes ,how this elements influence the usda zone of the gardens?
    thanks !! :)
     

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